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Third Quarter Examination in Physical Science

Quiz by Alvir Cruz

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50 questions
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  • Q1
    It is a cosmological model stating that the universe started its expansion about 13.8 billion years ago.
    Star Formation Theory
    Big Bang Theory
    Atomic Theory
    Nucleosynthesis
    60s
  • Q2
    Which of the following processes is likely to generate the heaviest element?
    r-process
    Triple-alpha process
    CNO cycle
    Proton-proton chain reaction
    60s
  • Q3
    Which of the following reactions is not a part of the alpha ladder?
    (_18^36)Ar+ (_2^4)He= (_20^40)Ca
    (_22^44)Ti+ (_2^4)He= (_24^48)Cr
    (_15^31)P + (_2^4)He= (_17^35)Cl
    (_12^24)Mg+ (_2^4)He= (_14^28)Si
    60s
  • Q4
    Main sequence stars are stars which form Helium atoms primarily through ____________.
    Proton-proton chain reaction and CNO cycle
    Triple-alpha process and Alpha ladder
    Both A and B.
    r-process and s-process
    60s
  • Q5
    Which correctly describes nucleosynthesis?
    Fission of nuclei
    Fusion of nuclei
    Division of nuclei
    Multiplication of nuclei
    60s
  • Q6
    Which process involves repeated proton capture and beta-plus decay?
    Proton-proton chain reaction
    CNO cycle
    Alpha ladder
    Triple alpha process
    60s
  • Q7
    How many protons are used in a nucleosynthesis to create a single atom of Helium?
    Four
    Three
    Two
    One
    60s
  • Q8
    Choose the best response: The heavy elements in a star are found in its core.
    Bluff. Heavy elements are concentrated in the photosphere of the star.
    Fact. But, only most.
    Bluff. Light elements like hydrogen atoms make the core of a star.
    Fact. Specifically, elements heavier than hydrogen.
    60s
  • Q9
    Which process involves the given chemical reaction? (_2^4)He+ (_2^4)He+(_2^4)He=(_6^12)C
    Alpha ladder
    Proton-proton chain reaction
    CNO cycle
    Triple-alpha process
    60s
  • Q10
    How many proton/s does a deuterium has?
    Three
    Four
    One
    Two
    60s
  • Q11
    Which correctly describes a matter? I. It has mass. II. Everything that exists is matter. III. It is anything that has weight IV. It occupies space.
    I and IV
    II and III
    I, II and IV
    II, III and IV
    60s
  • Q12
    Which of the following was NOT part of the ideas of Leucippus and Democritus?
    An object is made of small, indivisible parts which influence the object’s properties.
    The universe is made up of either atoms or a void.
    The universe changes because atoms move about, combine, collide and separate.
    The universe is made up of four elements that combine and separate to cause change.
    60s
  • Q13
    Who made the discovery of the electron of an atom?
    E. Goldstein
    J.J Thomson
    J. Chadwick
    E. Rutherford
    60s
  • Q14
    How will you describe the charge of an alpha particle?
    negative
    Both positive and negative
    no charge
    positive
    60s
  • Q15
    Modified True or False: Most of the heaviest elements were formed in main-sequence stars
    True.
    False. Supergiant
    False. Red giants
    False. Supernova
    60s

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